package org.siqisource.webstart.context;

import org.springframework.beans.BeansException;
import org.springframework.context.ApplicationContext;
import org.springframework.context.ApplicationContextAware;
import org.springframework.stereotype.Component;

@Component
public class Beans implements ApplicationContextAware {

	// Spring应用上下文环境
	private static ApplicationContext applicationContext;

	/**
	 * 实现ApplicationContextAware接口的回调方法，设置上下文环境
	 * 
	 * @param applicationContext
	 */
	public void setApplicationContext(ApplicationContext applicationContext) {
		Beans.applicationContext = applicationContext;
	}

	/**
	 * @return ApplicationContext
	 */
	public static ApplicationContext getApplicationContext() {
		return applicationContext;
	}

	/**
	 * 获取对象
	 * 
	 * @param name
	 *            类的名字
	 * @return Object 一个以所给名字注册的bean的实例
	 * @throws BeansException
	 */
	public static Object getBean(String name) {
		return applicationContext.getBean(name);
	}

	/**
	 * 获取对象
	 * 
	 * @param name
	 *            类的名字
	 * @return Object 一个以所给名字注册的bean的实例
	 * @throws BeansException
	 */
	public static <T> T  getBean (Class<T> calzz) {
		return (T)(Object)applicationContext.getBean(calzz);
	}

}
